I thought it was very good, I liked the subtext of the film and
I kinda think it's a film that's equally smart and dumb though as I thought the characters made too many dumb decisions to facilitate the plot and I think they made him a bit too unstoppable and overly strong at parts.
I liked the themes of trauma and empowerment though and outside of the spotty horror film logic writing, I thought the writing overall was pretty good as was the direction.
I'd say it's a solid 8/10.
I don't need a sequel though, I thought that was the perfect place to end it.